Patents by Inventor Takao Fukuda

Takao Fukuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11942914
    Abstract: The present invention provides a noise filter that can provide a wire linking a power source and a load along a desired path regardless of an installation location of the noise filter. A noise filter is connected to a wire of a wire harness linking a power source and a load and eliminates noise transmitted from the power source to the load. The noise filter includes a housing, a capacitor that is housed inside the housing, a ground terminal that is connected to the capacitor, and a noise filter wire that has a first end connected directly to the capacitor and a second end connected by splicing to a middle portion of the wire of the wire harness.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: March 26, 2024
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Takao Fukuda
  • Publication number: 20240034151
    Abstract: Provided is an electronic control unit mounted on an electrically driven vehicle, the electronic control unit being excellent in reliability and convenience in which recovery is easy while reliably shutting off a high-voltage power supply line at the time of collision of the vehicle or failure of a power supply shutoff circuit.
    Type: Application
    Filed: May 7, 2021
    Publication date: February 1, 2024
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Yusuke YAMAMOTO, Takao FUKUDA
  • Patent number: 11858333
    Abstract: A vehicle body structure includes a front floor panel provided on a vehicle front side and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A first battery arrangement portion is provided long in a vehicle front-rear direction at a center portion of the front floor panel in the vehicle width direction. A second battery arrangement portion is provided outside the first battery arrangement portion in a vehicle width direction below the front floor panel. An upper portion of the first battery arrangement portion is positioned higher than an upper portion of the second battery arrangement portion.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Patent number: 11850933
    Abstract: A vehicle body structure includes a front floor panel and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A front battery that supplies electric power to the traction motor is arranged below the front floor panel.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: December 26, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Publication number: 20230396055
    Abstract: A vehicle control device using a semiconductor fuse, and enabling an increase in size of the semiconductor fuse to be suppressed and the occurrence of an abnormal current to be detected early to enable shut off of the abnormal current. The vehicle control device includes a shut-off unit that supplies and shuts off a supply of power to a plurality of load devices; a current detector that detects a current flowing to the plurality of load devices; and a temperature detector that detects the temperature of the shut-off unit. Furthermore, the vehicle control device includes a drive controller that, when the temperature of the shut-off unit detected by the temperature detector exceeds a predetermined value, controls and restricts operation of the load devices for which the priority is low, based on priorities set for each of the plurality of load devices.
    Type: Application
    Filed: September 27, 2021
    Publication date: December 7, 2023
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Hiroshi NAKANO, Nobuyasu KANEKAWA, Takao FUKUDA
  • Patent number: 11738809
    Abstract: The vehicle body structure includes a front floor panel, a rear floor panel positioned lower than the front floor panel, and a connection panel extending from a rear portion of the front floor panel to a front portion of the rear floor panel and inclined or curved so as to be positioned downward toward a rear side. At least the front portion of the connection panel is positioned at the front of the front portion of the front seat.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 29, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Publication number: 20230076114
    Abstract: An object of the present invention is to realize a control device having operation continuity at the time of failure with less redundancy and reduce cost. Provided is a vehicle control system including a transmission unit that transmits energy to a driving wheel, a first control unit that controls the transmission unit, a first source that inputs energy to the transmission unit, a second source that inputs energy to the transmission unit, a second control unit that controls the first source, and a third control unit that controls the second source, wherein when the first control unit fails, the second control unit or the third control unit controls the transmission unit.
    Type: Application
    Filed: January 15, 2021
    Publication date: March 9, 2023
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Nobuyasu KANEKAWA, Hiroshi NAKANO, Atsushi ARATA, Takao FUKUDA
  • Publication number: 20220314771
    Abstract: A vehicle body structure includes a front floor panel provided on a vehicle front side and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A first battery arrangement portion is provided long in a vehicle front-rear direction at a center portion of the front floor panel in the vehicle width direction. A second battery arrangement portion is provided outside the first battery arrangement portion in a vehicle width direction below the front floor panel. An upper portion of the first battery arrangement portion is positioned higher than an upper portion of the second battery arrangement portion.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki KIMURA, Takehiro KAMEI, Hiroshi TANAKA, Haruo OHE, Masaya HIRAMATSU, Masanobu FUKUSHIMA, Takao FUKUDA, Hironobu HASHIGUCHI, Hiroyuki BABA
  • Publication number: 20220315127
    Abstract: A vehicle body structure includes a front floor panel on which a heel of a pedal operator is placed, and a rear floor panel attached to a front seat. The rear floor panel is positioned lower than the front floor panel. At least part of a seat frame of the front seat is positioned lower than an upper surface of the front floor panel.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Publication number: 20220314774
    Abstract: A vehicle body structure includes a front floor panel and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A front battery that supplies electric power to the traction motor is arranged below the front floor panel.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki KIMURA, Takehiro KAMEI, Hiroshi TANAKA, Haruo OHE, Masaya HIRAMATSU, Masanobu FUKUSHIMA, Takao FUKUDA, Hironobu HASHIGUCHI, Hiroyuki BABA
  • Publication number: 20220315128
    Abstract: The vehicle body structure includes a front floor panel, a rear floor panel positioned lower than the front floor panel, and a connection panel extending from a rear portion of the front floor panel to a front portion of the rear floor panel and inclined or curved so as to be positioned downward toward a rear side. At least the front portion of the connection panel is positioned at the front of the front portion of the front seat.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Publication number: 20220314770
    Abstract: A vehicle structure includes side sills, pillars, a first battery arrangement portion provided inside the vicinity of the pillars in a vehicle width direction below a floor panel, and a second battery arrangement portion provided at a center portion in the vehicle width direction below the floor panel in a region inside an outer portion of the first battery arrangement portion in the vehicle width direction.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki KIMURA, Takehiro KAMEI, Hiroshi TANAKA, Haruo OHE, Masaya HIRAMATSU, Masanobu FUKUSHIMA, Takao FUKUDA, Hironobu HASHIGUCHI, Hiroyuki BABA
  • Publication number: 20220315130
    Abstract: A vehicle body structure includes a front floor panel for placing a heel of a pedal operator, a rear floor panel attached to a rear seat, and a middle floor panel extending from the front floor panel to the rear floor panel. The front floor panel and the rear floor panel are positioned higher than the middle floor panel.
    Type: Application
    Filed: January 26, 2022
    Publication date: October 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Isao TODA, Takayuki KIMURA, Takehiro KAMEI, Hiroshi TANAKA, Haruo OHE, Masaya HIRAMATSU, Masanobu FUKUSHIMA, Takao FUKUDA, Hironobu HASHIGUCHI, Hiroyuki BABA
  • Publication number: 20220305915
    Abstract: A bulge portion bulging rearward is provided at a dash panel. A reinforcement is fixed to an inner surface of the bulge portion. A rear end wall portion of the bulge portion is positioned at the rear of a center portion of a rear end portion of a cowl panel in a vehicle width direction.
    Type: Application
    Filed: January 26, 2022
    Publication date: September 29, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takayuki KIMURA, Takehiro KAMEI, Isao TODA, Haruo OHE, Hironobu HASHIGUCHI, Hiroshi TANAKA, Masaya HIRAMATSU, Masanobu FUKUSHIMA, Takao FUKUDA
  • Patent number: 11309112
    Abstract: Provided is a solenoid valve drive device capable of accurately controlling a hysteresis value of a drive current for driving a solenoid valve. The solenoid valve drive device according to the present invention controls a set value of a hysteresis or a time width of the hysteresis based on a difference between an extreme value of the hysteresis in a peak hold period of a drive current and a set value of the extreme value.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 19, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Takuya Katagiri, Takao Fukuda, Yuuji Ishida
  • Patent number: 11300070
    Abstract: An electromagnetic valve control unit for detecting operation of an electromagnetic valve on the basis of a drive voltage or a drive current applied to the electromagnetic valve. The electromagnetic valve control unit includes an A/D converter, a filter, and a detection unit. The A/D converter converts the drive voltage or the drive current into a digital signal. The filter has a gain of about zero at a predetermined frequency. The detection unit detects operation of the electromagnetic valve on the basis of an output of the filter upon input of the digital signal into the filter.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 12, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Toshihiro Aono, Motoyuki Abe, Ryo Kusakabe, Teppei Hirotsu, Ayumu Hatanaka, Hideyuki Sakamoto, Takao Fukuda, Masahiro Toyohara, Osamu Mukaihara
  • Publication number: 20210316676
    Abstract: The present invention provides a noise filter that can provide a wire linking a power source and a load along a desired path regardless of an installation location of the noise filter. A noise filter is connected to a wire of a wire harness linking a power source and a load and eliminates noise transmitted from the power source to the load. The noise filter includes a housing, a capacitor that is housed inside the housing, a ground terminal that is connected to the capacitor, and a noise filter wire that has a first end connected directly to the capacitor and a second end connected by splicing to a middle portion of the wire of the wire harness.
    Type: Application
    Filed: August 7, 2019
    Publication date: October 14, 2021
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventor: Takao FUKUDA
  • Publication number: 20210249170
    Abstract: Provided is a solenoid valve drive device capable of accurately controlling a hysteresis value of a drive current for driving a solenoid valve. The solenoid valve drive device according to the present invention controls a set value of a hysteresis or a time width of the hysteresis based on a difference between an extreme value of the hysteresis in a peak hold period of a drive current and a set value of the extreme value.
    Type: Application
    Filed: June 11, 2019
    Publication date: August 12, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Takuya KATAGIRI, Takao FUKUDA, Yuuji ISHIDA
  • Patent number: 10961944
    Abstract: Provided is a fuel injection control device capable of improving detection accuracy of a singular point with respect to a characteristic of the fuel injection valve to be equal to or higher than an original time resolution of the A/D conversion, and capable of accurately detecting the singular point. A variable control part 24 variably controls a conversion timing of the A/D conversion part 221 such that the conversion timing of A/D conversion for physical quantity data related to driving of the fuel injection valve 10 is relatively changed, the A/D conversion part 221 acquires a plurality of time series data by performing A/D conversion on the physical quantity data at a conversion timing before change and at a conversion timing after change by the variable control part 24, and a detection part 223 detects a singular point with respect to the characteristic of the fuel injection valve 10 based on the plurality of time series data.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: March 30, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Takao Fukuda
  • Patent number: 10961935
    Abstract: A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that close a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder a housing and a needle and when a current is supplied to the solenoid a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 30, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryo Kusakabe, Motoyuki Abe, Ayumu Hatanaka, Toshihiro Aono, Teppei Hirotsu, Hideyuki Sakamoto, Masahiro Toyohara, Osamu Mukaihara, Takao Fukuda, Yoshihito Yasukawa, Akiyasu Miyamoto